Ruland MOST25-6-A Oldham Coupling Hub
DIMENSIONS | |||
---|---|---|---|
Bore (B1) | 6 mm | Outer Diameter (OD) | 25.4 mm |
B1 Max Shaft Penetration | 9.9 mm | Bore Tolerance | +0.03 mm / -0.00 mm |
Hub Width (LH) | 9.91 mm | Length (L) | 28.6 mm |
Recommended Shaft Tolerance | +0.000 mm / -0.013 mm | ||
FASTENING HARDWARE | |||
Forged Set Screw | M4 | Number of Screws | 2 ea 90° apart |
Screw Material | Alloy Steel | Screw Finish | Black Oxide |
Seating Torque | 2.2 Nm | Hex Wrench Size | 2.0 mm |
PERFORMANCE SPECIFICATIONS | |||
Torque Specifications | Torque ratings vary with insert selection | Angular Misalignment | 0.5° |
Parallel Misalignment | 0.008 in (0.20 mm) | Max Parallel Misalignment | 0.100 in (2.54 mm) |
Axial Motion | 0.004 in (0.10 mm) | Moment of Inertia | 1.259 x 10-6 kg-m2 |
Maximum Speed | 4,500 RPM | Recommended Inserts | OD16/25-AT, OD16/25-NL, OD16/25-PEK |
Full Bearing Support Required? | Yes | Zero-Backlash? | Yes |
Balanced Design | Yes | Mechanical Fuse? | Yes |
ADDITIONAL INFORMATION | |||
UPC | 634529062265 | Country of Origin | USA |
Material Specification | 2024-T351 Aluminum Bar | Finish | Black Anodized |
Finish Specification | Sulfuric Anodized MIL-A-8625 Type II, Class 2 and ASTM B580 Type B Black Anodize | Manufacturer | Ruland Manufacturing |
Temperature | Acetal Disk -10°F to 150°F (-23°C to 65°) Nylon Disk -10°F to 130°F (-23°C to 54°C) PEEK Disk -10°F to 300°F (-23°C to 148°C) | Weight (lbs) | 0.032500 |
Tariff Code | 8483.60.8000 | UNSPC | 31163015 |
Ruland MOST25-6-A Oldham Coupling Hub
Carefully made by Ruland in Marlborough, MA, Oldham couplings are comprised of two hubs pressed fit with either an acetal or nylon disk.
Oldham couplings disengage if the disc breaks, acting as a mechanical fuse.
Well-suited for handling large amounts of parallel misalignment.
Hub material is type 2024 T351 high strength aluminum with a black anodized finish and M4 forged alloy steel set screws.
Maximum is 4,500 RPM. RoHS and Reach compliant. Also called a universal coupling, shaft coupling, or coupler.
Ruland MOST25-6-A Oldham Coupling Hub.
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